Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:
 "This has been a smaller cycle than normal. One new driver was
  accepted, which is unusual, and at least one more driver remains in
  review on the list.

  Summary:

   - Driver fixes for hns, hfi1, nes, rxe, i40iw, mlx5, cxgb4,
     vmw_pvrdma

   - Many patches from MatthewW converting radix tree and IDR users to
     use xarray

   - Introduction of tracepoints to the MAD layer

   - Build large SGLs at the start for DMA mapping and get the driver to
     split them

   - Generally clean SGL handling code throughout the subsystem

   - Support for restricting RDMA devices to net namespaces for
     containers

   - Progress to remove object allocation boilerplate code from drivers

   - Change in how the mlx5 driver shows representor ports linked to VFs

   - mlx5 uapi feature to access the on chip SW ICM memory

   - Add a new driver for 'EFA'. This is HW that supports user space
     packet processing through QPs in Amazon's cloud"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (186 commits)
  RDMA/ipoib: Allow user space differentiate between valid dev_port
  IB/core, ipoib: Do not overreact to SM LID change event
  RDMA/device: Don't fire uevent before device is fully initialized
  lib/scatterlist: Remove leftover from sg_page_iter comment
  RDMA/efa: Add driver to Kconfig/Makefile
  RDMA/efa: Add the efa module
  RDMA/efa: Add EFA verbs implementation
  RDMA/efa: Add common command handlers
  RDMA/efa: Implement functions that submit and complete admin commands
  RDMA/efa: Add the ABI definitions
  RDMA/efa: Add the com service API definitions
  RDMA/efa: Add the efa_com.h file
  RDMA/efa: Add the efa.h header file
  RDMA/efa: Add EFA device definitions
  RDMA: Add EFA related definitions
  RDMA/umem: Remove hugetlb flag
  RDMA/bnxt_re: Use core helpers to get aligned DMA address
  RDMA/i40iw: Use core helpers to get aligned DMA address within a supported page size
  RDMA/verbs: Add a DMA iterator to return aligned contiguous memory blocks
  RDMA/umem: Add API to find best driver supported page size in an MR
  ...

1 files changed, 126 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/hns/hns_roce_restrack.c b/drivers/infiniband/hw/hns/hns_roce_restrack.c
new file mode 100644
index 000000000000..0a31d0a3d657
--- /dev/null
+++ b/drivers/infiniband/hw/hns/hns_roce_restrack.c
@@ -0,0 +1,126 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+// Copyright (c) 2019 Hisilicon Limited.
+
+#include <rdma/rdma_cm.h>
+#include <rdma/restrack.h>
+#include <uapi/rdma/rdma_netlink.h>
+#include "hnae3.h"
+#include "hns_roce_common.h"
+#include "hns_roce_device.h"
+#include "hns_roce_hw_v2.h"
+
+static int hns_roce_fill_cq(struct sk_buff *msg,
+			    struct hns_roce_v2_cq_context *context)
+{
+	if (rdma_nl_put_driver_u32(msg, "state",
+				   roce_get_field(context->byte_4_pg_ceqn,
+						  V2_CQC_BYTE_4_ARM_ST_M,
+						  V2_CQC_BYTE_4_ARM_ST_S)))
+		goto err;
+
+	if (rdma_nl_put_driver_u32(msg, "ceqn",
+				   roce_get_field(context->byte_4_pg_ceqn,
+						  V2_CQC_BYTE_4_CEQN_M,
+						  V2_CQC_BYTE_4_CEQN_S)))
+		goto err;
+
+	if (rdma_nl_put_driver_u32(msg, "cqn",
+				   roce_get_field(context->byte_8_cqn,
+						  V2_CQC_BYTE_8_CQN_M,
+						  V2_CQC_BYTE_8_CQN_S)))
+		goto err;
+
+	if (rdma_nl_put_driver_u32(msg, "hopnum",
+				   roce_get_field(context->byte_16_hop_addr,
+						  V2_CQC_BYTE_16_CQE_HOP_NUM_M,
+						  V2_CQC_BYTE_16_CQE_HOP_NUM_S)))
+		goto err;
+
+	if (rdma_nl_put_driver_u32(
+		    msg, "pi",
+		    roce_get_field(context->byte_28_cq_pi,
+				   V2_CQC_BYTE_28_CQ_PRODUCER_IDX_M,
+				   V2_CQC_BYTE_28_CQ_PRODUCER_IDX_S)))
+		goto err;
+
+	if (rdma_nl_put_driver_u32(
+		    msg, "ci",
+		    roce_get_field(context->byte_32_cq_ci,
+				   V2_CQC_BYTE_32_CQ_CONSUMER_IDX_M,
+				   V2_CQC_BYTE_32_CQ_CONSUMER_IDX_S)))
+		goto err;
+
+	if (rdma_nl_put_driver_u32(
+		    msg, "coalesce",
+		    roce_get_field(context->byte_56_cqe_period_maxcnt,
+				   V2_CQC_BYTE_56_CQ_MAX_CNT_M,
+				   V2_CQC_BYTE_56_CQ_MAX_CNT_S)))
+		goto err;
+
+	if (rdma_nl_put_driver_u32(
+		    msg, "period",
+		    roce_get_field(context->byte_56_cqe_period_maxcnt,
+				   V2_CQC_BYTE_56_CQ_PERIOD_M,
+				   V2_CQC_BYTE_56_CQ_PERIOD_S)))
+		goto err;
+
+	if (rdma_nl_put_driver_u32(msg, "cnt",
+				   roce_get_field(context->byte_52_cqe_cnt,
+						  V2_CQC_BYTE_52_CQE_CNT_M,
+						  V2_CQC_BYTE_52_CQE_CNT_S)))
+		goto err;
+
+	return 0;
+
+err:
+	return -EMSGSIZE;
+}
+
+static int hns_roce_fill_res_cq_entry(struct sk_buff *msg,
+				      struct rdma_restrack_entry *res)
+{
+	struct ib_cq *ib_cq = container_of(res, struct ib_cq, res);
+	struct hns_roce_dev *hr_dev = to_hr_dev(ib_cq->device);
+	struct hns_roce_cq *hr_cq = to_hr_cq(ib_cq);
+	struct hns_roce_v2_cq_context *context;
+	struct nlattr *table_attr;
+	int ret;
+
+	if (!hr_dev->dfx->query_cqc_info)
+		return -EINVAL;
+
+	context = kzalloc(sizeof(struct hns_roce_v2_cq_context), GFP_KERNEL);
+	if (!context)
+		return -ENOMEM;
+
+	ret = hr_dev->dfx->query_cqc_info(hr_dev, hr_cq->cqn, (int *)context);
+	if (ret)
+		goto err;
+
+	table_attr = nla_nest_start(msg, RDMA_NLDEV_ATTR_DRIVER);
+	if (!table_attr)
+		goto err;
+
+	if (hns_roce_fill_cq(msg, context))
+		goto err_cancel_table;
+
+	nla_nest_end(msg, table_attr);
+	kfree(context);
+
+	return 0;
+
+err_cancel_table:
+	nla_nest_cancel(msg, table_attr);
+err:
+	kfree(context);
+	return -EMSGSIZE;
+}
+
+int hns_roce_fill_res_entry(struct sk_buff *msg,
+			    struct rdma_restrack_entry *res)
+{
+	if (res->type == RDMA_RESTRACK_CQ)
+		return hns_roce_fill_res_cq_entry(msg, res);
+
+	return 0;
+}